99573-07-6

Upstream product

• 101-32-6 N-benzyl-diethanolamine 
• 24468-88-0 2-bromo-N-(2-bromoethyl)-N-(phenylmethyl)ethanamine 
• 829-85-6 diphenylphosphane 
• 2096-78-8 vinyldiphenylphosphine oxide 
• 100-46-9 benzylamine 

Downstream Products

• 99572-97-1 chlorobis(bis(2-(diphenylphosphino)ethyl)benzylamine)ruthenium(II)chloride 
• 99572-96-0 dichloro(triphenylphosphine)(bis(2-(diphenylphosphino)ethyl)benzylamine)ruthenium(II) 
• 111143-58-9 carbonyl(bis(2-(diphenylphosphino)ethyl)benzylamine)rhodium(I)chloride 
• 477718-55-1 dichloro(triphenylphosphine)(bis(2-(diphenylphosphino)ethyl)benzylamine)ruthenium(II) 
• 847043-53-2 CrCl₃((C₆H₅)2PCH₂CH₂)2NCH₂C₆H₅ 
• 111143-60-3 (PdClC₆H₅CH₂N(CH₂CH₂P(C₆H₅)2)2)⁽¹⁺⁾*Cl^(1-) = (PdClC₆H₅CH₂N(CH₂CH₂P(C₆H₅)2)2)Cl 
• 109897-15-6 (PtCl(DPBA))Cl 
• 109897-01-0 (CoCl(DPBA))Cl 
• 109897-23-6 (Ir(PPh₃)(DPBA))Cl 
• 109897-21-4 (Rh(PPh₃)(DPBA))Cl 
• 109897-09-8 (NiI(DPBA))B(C₆H₅)4 
• 109897-12-3 (PdCl(DPBA))B(C₆H₅)4 
• 109897-03-2 (CoBr(DPBA))B(C₆H₅)4 
• 109897-07-6 (NiBr(DPBA))B(C₆H₅)4 

Relevant academic research and scientific papers

Dual coordination modes of ethylene-linked NP2 ligands in cobalt(II) and nickel(II) iodides

Here we report the syntheses and crystal structures of a series of cobalt(II) and nickel(II) complexes derived from RNP2 ligands (where R = OMeBz, HBz, BrBz, Ph) bearing ethylene linkers between a single N and two P donors. The CoII complexes generally adopt a tetrahedral configuration of general formula [(NP2)Co(I) 2], wherein the two phosphorus donors are bound to the metal center but the central N-donor remains unbound. We have found one case of structural isomerism within a single crystal structure. The CoII complex derived from BzNP2 displays dual coordination modes: one in the tetrahedral complex [(BzNP2)Co(I)2]; and the other in a square pyramidal variant, [(BzNP2)Co(I)2]. In contrast, the NiII complexes adopt a square planar geometry in which the P(Et)N(Et)P donors in the ligand backbone are coordinated to the metal center, resulting in cationic species of formula [(RNP2)Ni(I)]+ with iodide as counterion. All NiII complexes exhibit sharp 1H and 31P spectra in the diamagnetic region. The Co II complexes are high-spin (S = 3/2) in the solid state as determined by SQUID measurements from 4 to 300 K. Solution electron paramagnetic resonance (EPR) experiments reveal a high-spin/low-spin CoII equilibrium that is dependent on solvent and ligand substituent.

Scope and limitations of the preparation of aminophosphines R-NH(CH2CH2PPH2) and aminodiphosphines R-N(CH2CH2PPH2)2 via Michael addition of amines to vinylphosphines

The addition of a range of amines to vinyldiphenylphosphine oxide was examined under different reaction conditions. The methodology provides mixed phosphorus-nitrogen donor ligands R-NH(CH2CH2PPh2) 3 and R-N(CH2CH2PPh2)2 4, which could be prepared in high yields and purity in two simple steps. Labelling study revealed a non-concerted mechanism and the X-ray crystal structure of 1e is reported.